Harrow.



PATENTED JAN. 1, 1907.

F. ADIX. HARROW.

7 APPLICATION FILED JULYS, 1906.

2 SHEETS-SHEET l.

a: a co o n u T V w: W 000 no oi-uoocnuano ,0 a 0 .Ac 0 0 0 o I 0 1106mace 'No. 839,799. PATENTED JAN. 1, 1907.

F. ADIX.- HARROW.

APPLICATION FILED JULY3,1906.

2 SHEETSSEEBT 2.

FRANCIS iiDlX, OF BOONE, IOWA.

HARROW.

Specification of Letters Patent.

Patented Jan. 1, 1907.

Application filed July 3, 1906. Serial No. 324,691.

ing is a specification, reference being had therein to the accompanyingdrawings;

My invention relates. to' improvements in harrows, and moreparticularlyto tooth structures therefor; and .it consists in the novelconstruction, combination, and arrangement of parts hereinafterdescribed and claimed.

The objjegt of theinvention is to improve and simp the construction ofdevices, of this character, and thereby render the same more durable andefficient,

The above and other objectswhich will ap-; pear as the nature of' theinvention is better understood are accomplished by the constructionillustrated in the accompanying drawings, in which%- Figure 1 is a topplan view of my improved harrow. Fig. '2 is a vertical sectional viewtaken on the plane indicated by the. line as x in Fig. 1. Fig. 3 isadetail vertical sectional view taken'on the plane indicated by the line'y y in Fig. 2. Fig. 4.is a detail horizontal sectional view through thecoupling or hinge devices connecting thev tooth-bars of two sec-- tionsof the harrow, the plane of the section being indicated by, the line 4 4in Fig.' 3 and Fig. 5 is a'detail perspective view of one of thetooth-bars, ones ct the connecting-bars, and one of the runners forsupporting the intermediate'section of the 'harrow whenjthe latter isndt'inuse.

My imp'roved'harrow consists, preferably, of three similar sections 1 23 ,"arranged side by side and hingedly connected, so that the two end oroutside sections 2 '3 may be folded together above the intermediateor-middle section 1 when the device is notin use for harrowing. Sincethese'harrow-sections are substantially alike, a description of one willsufficejor fills Each section consists, preferably, of five transversetoothcarrying bars; or rods 4, mounted for rotation in three 1ongitudinal connecting channel bars or beams 5. The latter are connectedtogether and 8 need apart by diagonal braces 6 in the form 0 man strapshaving their angularlybent' ends bolted to the connecting-bars. Thetooth-bars 4 are in the form of metal tubes or sections of gas-pipe andproject through transversely-aiming op'enings in the connecting-bars 5,in which they rotate. They are prevented from slip ing endwise in thebars 5 by split pins or eys 7, passed through openings in the bars 4 onopposite sides of the bars 5.. Washers 8 are interposed between saidkeys and the channeled sides of the bars 5, as shown. 'In some instancesthe washers 8 and ins 7 'are'omitted, other parts taking their p aces,as hereinafter described and as {number of barrow-teeth of any suitableorm may be arranged on each of the bars 4; but I'preferably employspike-teeth 9 and arrange them at suitable intervals along said bars.These teeth have the lower ends of their square bodies pointed, andtheir upper ends are formed with reduced stems or shanks 10, whichextend through openings in vthe bars 4 and are screw-threaded to receivenuts 11. In order to adjust the teeth angularly and hold them adjusted,I provide on each of the bars 4 adjacent to its center an 'arm 12.Thesef arms have their inner ends shaped to fit said barsand are securedthereon by transverse pins 13, and their outer ends are pivotallyconnected to a connecting rod or link 14., which extendslongitudinally'and has its rear end pivoted to a hand-lever 15.: Thelatter takes the place of 'the arm 12 on the rearmost bar 4 and hasi'tslowerend I shaped to fit said bar and-secured'thereon by apin 16, Theupper end of the lever.l5 is formed with a handle and has pivoted uponit a hand-piece 17,, which operates a s ringseated pawl 18, slidablymounted on t e le-" use of a sled, wagon, or the like, I provide on' themiddle'section 1 runners 20. These runners are pleferably carried by thefront and rear toot bars 4 and are so disposed that thcyare elevatedabove the ground When the teeth; are enga ed therewith and are loweredto engage t e ground when the hand-lever is swung'to elevate the teeth.Each of the runners 20 is in the form of acurved or will be seen uponreference to the drawings.

. upon reference to Fig. 1.

cam-shaped arm formed at one end with a 1 portion 21, shaped to fit overone end of one of said bars 4, on which it is retained by a transverseor cross pin 22. When the harrow is supported on the runners 20, its twoend sections 2 3 are swung upwardly together above the section 1 and maybe retained in this folded position by a small chain or any other meanThe folding of the harrow-sections'2 3is permitted by the hingeconnections 23, provided between the adjacent ends of the front and reartooth-bars 4 of each section. Each of the hinge connections 23 consistsof a hook member 24 and an eye or loopmember 25, the former being adated to detaehably engage the latter. Eac of the hook members 24 isformed with a reduced end or shank 26, ada ted to fit into the inner endof one of sai bars 4 of one of the end sections and to be securedtherein by the shank 10 of one of the teeth 9. Each'bf the eye members25 is formed with a similar end 27, adapted to fit into one end of oneof the said bars4 of the middle section 1 and to be secured therein bythe pin 22, which attaches the adjacent runner 20 to such bar 4, asclearly shown in Figs.

3, 4 of the drawings. On the front of the two outer connectingbars 5 ofeach section is secured an apertured plate 29. The plates 29 on eachsection are connected by twisted clevises or clips 30 to one of thethree members of a sectional draft-bar 31. The three members or sectionsof this draft-bar are connected by hinges 32, which have their pintelsin longitudinal alinement with the hinge connections 23, so that thedraft-bar folds with the harrow-sections 2 3. The middle member of thebar 31 is connected by links 33 to rings 34, which are in turn connectedby links 35 to a ring 36, to which latter the draft animal or animalsare attached. Each of the end members of the draft-bar 31 is connectedby long and short links 37 38 to a ring 39, which is in turnconnected'bv a short link 40 to one of the rings v34, as will be seen Itwill be observed that when the barrow-sections are open ,or' in theosition shown in said figure the pull or dra t will be. distributedequally on the three sections of the harrow by reason of the said linkconnections and that when the harrowsections are folded the draft willbe entirely upon the middle section 1. In either position there isno-strain whatever upon the hinge connections.

[The operator sits upon a seat 45, mounted r upoi. a riding attachment42, comprising a wheel-sup orted frame 46, having forwardlydiverging ars41, which are secured at their front'ends to the central section 31 ofthe draft-bar. This riding attachment forms the subject-matter of aseparate application,

Serial No. 334,447, filed St tember 13, 1906, and need not be describedin detail.

The construction, operation, and advantages of the invention will bereadily understood from the foregoing description, taken in connectionwith the accompanying drawings. Itwill be seen that the device is ofsimple, strong, durable, and comparatively inexpensive construction,that it is convenient and easy to handle, and that it is very effectivein operation. One or both of the outside sectrons may be folded withoutr moving the riding attachment and without interfering with the driverthereon. By hooking the sections together, then folding them, and

lowering the runners 20 the device may be pulled over any road or fieldor through any gate. It will be 'seen that by adjusting the hand-levers15 the teeth of the harrow-sec tio'ns may be set at any desired angle ormay be thrown upwardly out of operation and the runners 20 on thecentral section simultaneous ly lowered-to engage the ground. The hingeconnections 23 are disconnected when it is desired to adjust thetooth-bars of the several sections of the barrow.

Various changes in the form, proportion, and the minor details ofconstruction may be resorted to without departing from the spirit orsacrificing any ofthe advantages of the invention as defined by theappended claims.

Having'thus'described my said invention, what I claim as new, and desireto secure by Letters Patent ofthe United States, is-

l 1. A' harrow comprising a frame, cylindricaltooth-carrying barsrotatable therein,

runners having cylindrical ortions formed with transverse openings to tcertain of said 0 lindrical tooth-carrying bars, said runners a sohaving cam-shaped arms formed integral with said cylindrical portionandprojecting laterally therefrom, cross-pins passed through-thecylindrical portions *'of said runners 'and said bars for, retaining theformer upon the latter, and means for operating said bars tosin'a-ultaneously elevate the teeth thereon and lower the runners, thelatter havingtheir cam-shaped arms disposed longitudinally with respectto the direction of movement of the barrow, substantially as shown anddescribed.

2. A harrow comprising longitudinal channel-metal connecting-bars,braces connecting said bars, transverse bars. rotatable in saidchannel-bars, teeth u on said transverse bars, cross-pins in .saitransverse bars on oppositesides of said channel-bars, washers on saidtransverse bars between said crossins and the channebfaces of saidchannel ars, and means for adjusting said transverse bars in saidchannel-bars.

3. A harrow comprising longitudinal channel-metal connecting-bars,diagonal braces said rod, a pawl and rack for locking said le-- I0connecting'said bars, transverse tubular bars ver, and a draftconnection at the front ends rotatable in said ehann'el-bars', teethupon of said channel-bars.

said tubular bars, s lit pins in said tubular In testimony whereof Ihereunto affix my bars, arms upon said tubular bars, a rod con- N. A.WALKER,

bars on opposite si es of saidechannel-bars," signature in presence oftwo witnesses. v washers on said tubular bars between said- FRANCISADIX. pins and the channel-faces of said channel- Witnesses: i

necting said arms, a'hand-lever for operating GEO. L. Amx.

